featureslistwidget.h

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00001 /*  -*- c++ -*-  (for Emacs)
00002  *
00003  *  featureslistwidget.h
00004  *  Digest
00005  * 
00006  *  Created by Aidan Lane on Tue Aug 16 2005.
00007  *  Copyright (c) 2005 Optimisation and Constraint Solving Group,
00008  *  Monash University. All rights reserved.
00009  *
00010  *  This program is free software; you can redistribute it and/or modify
00011  *  it under the terms of the GNU General Public License as published by
00012  *  the Free Software Foundation; either version 2 of the License, or
00013  *  (at your option) any later version.
00014  *
00015  *  This program is distributed in the hope that it will be useful,
00016  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00017  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00018  *  GNU General Public License for more details.
00019  *
00020  *  You should have received a copy of the GNU General Public License
00021  *  along with this program; if not, write to the Free Software
00022  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
00023  */
00024 
00025 #ifndef FEATURESLISTWIDGET_H
00026 #define FEATURESLISTWIDGET_H
00027 
00028 
00029 #include "WidgetPack/headedlistwidget.h"
00030 
00031 #include <QPoint>
00032 
00033 
00040 class FeaturesListWidget : public HeadedListWidget {
00041 
00042 public:
00043   enum { FeatureKeyRole = Qt::UserRole };
00044 
00045   FeaturesListWidget( QWidget* parent = 0 );
00046 
00047   void addFeature( const QByteArray& key );
00048   void insertFeature( int row, const QByteArray& key );
00049 
00050   QByteArray itemFeatureKey( QListWidgetItem* item );
00051   QByteArray rowFeatureKey( int row );
00052 
00053   const QPen& insertionLinePen() const;
00054   void setInsertionLinePen( const QPen& pen );
00055 
00056 
00057 protected:
00058   virtual void startDrag( Qt::DropActions supportedActions );
00059 
00060   virtual void mousePressEvent( QMouseEvent* event );
00061 
00062   virtual void dragEnterEvent( QDragEnterEvent* event );
00063   virtual void dragLeaveEvent( QDragLeaveEvent* event );
00064   virtual void dragMoveEvent( QDragMoveEvent* event );
00065   virtual void dropEvent( QDropEvent* event );
00066 
00067   virtual void paintEvent( QPaintEvent* event );
00068 
00069 
00070 private:
00071   QPen m_insertionLinePen;
00072 
00073   QPoint m_dragStartPos;
00074 
00075   bool m_drawInsertionLine;
00076   int  m_insertionLineRow;
00077 };
00078 
00079 
00080 #endif  // ! FEATURESLISTWIDGET_H

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